Atlona AT-HDSYNC HDMI Recorder, Writer and Hot Plug Simulator with RS232 Control DVI 1.0 and HDCP 1.1 compliant Built-in default EDID, Able to read and store the EDID of monitors/projectors/TVs Prevent computers from deactivating inactive HDMI ports Maintain HDMI video resolution RS-232 control allows users to program EDID information directly into the unit